Webhook server

server.js

/* Simple webserver that logs all requests to /hook to a file
 * Usage:
 * npm install express
 * node server.js
 */
var express = require('express');
var fs = require('fs');

var app = express();

var logfile = 'webhook.log';

fs.writeFileSync(logfile, '', { encoding: 'utf8' });

app.get('/', function (req, res) {
  res.set('content-type', 'text/plain');
  res.send(
    'Webhook requests\n\n' +
    fs.readFileSync(logfile, { encoding: 'utf8' })
  );
});

app.all('/hook', function (req, res) {
  console.log("Received hook");
  var body = '';
  req.setEncoding('utf8');
  req.on('data', function (chunk) { body += chunk; });
  req.on('end', function () {
    var data = {
      time: (new Date()).toISOString(),
      method: req.method,
      headers: req.headers,
      params: req.params,
      query: req.query,
      body: body
    };

    fs.appendFileSync(logfile, JSON.stringify(data, true, 2) + '\n', { encoding: 'utf8' })
    res.send('{ "status": "OK" }');
  });
});

var port = process.env.PORT || 3000;
app.listen(port, function () {
  console.log('Listening on port ' + port);
});